Color

#a41b19

#a41b19
hex#a41b19
rgbrgb(164, 27, 25)
hslhsl(1, 74%, 37%)
oklchoklch(0.465 0.172 27.7)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0875

Colors that go with #a41b19

Royal Blue, Teal and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#19a2a4

#a4195c · #a46119

#19a41b · #1b19a4

Split-complementary

Open in tool →

#19a461 · #195ca4

#5ca419 · #19a2a4 · #6119a4

Contrast

#a41b19 as textRatioAAAA largeAAAFix
Aaon white
7.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #df2d2a as the text (4.55:1)
  • AAA: use #ea7371 as the text (7.19:1)
  • AA: or shift the background to #c7c7c7 (4.52:1)
  • AAA: or shift the background to #f5f5f5 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a41b19 as the background.

Brands using this color

Fonts for this mood

#a41b19 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a41b19
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #a41b19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a41b19-c4a19c-62cb9a-2d261f-f1e9ed?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md